Concrete column.



D. B. DANIELSON.

CONCRETE COLUMN.

APPLICATION FILED APR. 2a, 1909.

1,1 1 9,406. Patented Dec. 1, 19m

2 BHEETB-SHEET 1.

minim "I IIIIIJLH D. B. DANIBLSON.

CONCRETE COLUMN.

APPLICATION IILBD APR. 23. 1909.

1,1 1 9,406. Patented Dec. 1, 1914.

2 SHEETS-SHEET 2.

DANIEL TB. DANIELSON, 0F MILWAUKEE, WISCONSIN.

CONCRETE COLUMN.

Specification of Letters Patent.

Patented Dec. 1, 1914.

Application filed April 23, 1909. Serial No. 491,775.

To all whom it may concern Be it known that I, DANIEL B. DANIELSON,residing in Milwaukee, in the county of Milwaukee and State ofWisconsin, have invented new and useful Improvements in ConcreteColumns, of which the following is a description, reference being had tothe accompanying drawings, which are a part of this specification.

This invention has for its object to provide a concrete columnconstruction with metallic reinforcements so constructed and arrangedthat vertical reinforcing rods of the column may connect with andconstitute a suspension connection for radially extending supportingrods of the floor or other building structure supported by the column.

Another object of this invention is to provide novel means forconnecting the supporting rods with the vertical column reinforcingrods.

With the above and other objects in view the invention consists in theconcrete column herein claimed, its parts and combinations of parts andall equivalents.

Referring to the accompanying drawings in which like characters ofreference indicate the same parts in the diflerent views, Figure 1 is anelevation of a column constructed in accordance with this invention witha portion of the reinforcement thereof exposed; Fig. 2 is a plan viewthereof; Fig. 3 is a transverse sectional view through a column; Fig. 4is a detail view showing a modified form of connection between thecolumn reinforcing rod and the supporting rods; Fig. 5 is a plan view ofa floor reinforcement wherein the form of connection shown in Fig. 4: isemployed; Fig. 6 is a detail view of the tightening means for thesupporting rods thereof; Fig. 7 is a detail view of another form ofconnection for the column reinforcing rod and the supporting rods.

In these drawings 15 indicates the vertical reinforcing fods upon whichthe concrete 16 forming the column is molded, said reinforcing rodsbeing usually connected in any manner by tie wires 17 and having a wire18 wrapped therearound before the cement or other concrete material 16is poured into the mold which surrounds the reinforcement during theprocess of construction. At the upper ends of the reinforcing rods 15,just below the upper surface of the floor or other building structuresupported by the column,

said reinforcing rods 15 are securedly con nected with radiallyextending supporting rods 19 which preferably pass diametrically acrossthe column with a sutlicient bend between the two reinforcing rods withwhich they connect to cause them to avoid each other at the axis of thecolumn, and then said supporting rods are preferably bent downwardly toform approximately an umbrella shape with the arched supporting rodscorresponding to the arched umbrella ribs. In addition to the radiallyextending supporting rods 19 there are airs of parallel stringers 0r tierods 20 crossing at the axis of the column at approximately the sameelevation as the supporting rods and which serve to directly connecteach column with the adjacent columns.

Besides the radially extending supporting rods 19 and the tie rods 20each column is preferably provided with a series of ring shaped hoops 25surrounding the upper ends of the column reinforcing rods 15, each hoopbeing of larger diameter that the one below, and secured to these hoopsare inclined rods 26 to form therewith an inverted cone shapedbasket-like reinforcement for the capital of the column. Also as shownin Figs. 1 and 5 there are rectangular frames 27 and crossed oblongframes 28 laid upon the umbrella shaped supporting reinforcements of thecolumns to form a net work of reinforcement centered upon the axis ofeach column to support the floor or other structure formed on the columnand prevent its being punctured by the column.

With that form of the invention shown in Figs. 1 and 5 certain of thecolumn reinforcing rods 15 have their ends bent to form hooks 29engaging the supporting rods 19 and certain of the rods 15 projectupwardly between the pairs of tie rods 20 and these are not bent butproject above the surface of the floor supported by the column to serveas spotters to enable the columns of the different floors beingpositioned directly in alinement with each other.

In the form of the invention shown in Figs. 4 and 5, the supporting rods19 instead of terminating a short distance from the column are benttoward the adjacent columns and are coupled with the ends of thecorresponding supporting rods thereof, preferably by having loops 30 onthe end of each surrounding the other with wedge blocks 31 therebetweenfor tightening the stretch from one column to the next. With thisconstruction the hooked ends of the reinforcing rods 15 are merelyengaged with eye 32 bent therein at an intermediate point to receive thesupporting rods.

In the modification shown in Fig. 7 the end of the reinforcing rod 15isbent to form an eye 33 to receive the supporting rods 19 in the samemanner, this form of the invention closely resembling the form shown inFigs. 4 and 5.

With all of the forms of the invention the radially extending supportingrods for the floor or other structure supported by the col.- umn becomerigidly connected with the vertically extending reinforcing rods 15 ofthe column when the cement or other concrete filling is molded thereonso that the supporting rods and the net Work of reinforcing rods Whichis usually supported on them Will be suspended from the columns directtosustain the Weight imposed upon them.

Copies of. this patent may be obtained for prisinga column having aplurality of verti-.

cally-extending reinforcing rods forming the frame WOI'k of said column,said rods being bent intermediate their ends to form "loops or eyes, andseparate horizontally-extending rods passing through said loops forsupporting the floors adjacent the column, theverticalrods in the columnextending above and below the floors carried bysaidhorizontally-extending supporting rods.

2. A reinforced concrete structure having vertical reinforcing rodsforming the frame- Worlr of superimposed columns on different floors andbent at their intermediate portions to form loops or eyes, and separateradially extending supporting rodspassing through diametrically oppositeeyes and extending beyond the column to form a suspension connectionWith the column reinforcelnent for the reinforcement of the structuresupported by the column.

In testimony whereof, I my signature, in presence of two Witnesses.DANIEL B. DANIELSON;

Witnesses:

R, S.-C. CA DWE L, ALMA AQTKLUGM five cents each, by addressing theCommissioner of l atents,

Washington, It). 0.

